Home / 5,920.16-8,171.60-3,531.87

Finding the Fourth Proportional to 5,920.16, 8,171.60 and 3,531.87

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Solution

The fourth proportional to 5,920.16, 8,171.60 and 3,531.87 is: 4,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.16 : 8,171.60 = 3,531.87 : x
  2. Step 2: Convert to fraction form
    5,920.16/8,171.60 = 3,531.87/x
  3. Step 3: Cross multiply
    5,920.16x = 8,171.60 × 3,531.87
  4. Step 4: Simplify right side
    5,920.16x = 28,861,011.23
  5. Step 5: Solve for x
    x = 28,861,011.23/5,920.16
  6. Step 6: Final answer
    x = 4,875.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.